schwabe



March 12, 1929. H. .1. SCHWABE 3 ,2

METHOD 7.0? AND MEANS FOR DAMPENING SILK AND LIKE FILAMENTS FOR USE ON TEXTILE MACHINES Filed July 20, 1925 2 Sheets-Sheet March 12, 9. H. J. SCHWABE NING E 1,705,212 ETHOD OF AND MEANS FOR DAMPE IKE 'FILAMENTS FOR USE ON TEX File SILK AND L MACHINE-'5 a July 20, 1 2 Sheets-Sheet 2 //7 Men for:

Patented Mar. 12, 12.29.

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I-IERIVIANN JOHANNES SCHVTABE, 6F CHEMNT'IZ, GERMANY.

METHOD OF AND MEANS FOR DAMPENING SILK AND LIKE FILAMENTS FOR USE ON TEXTILE MACHINES.

Application filed July 20, 1925, Serial No. 44,935, and in Germany July 21, 1924.

Yarns used in the textile industry are usually dampened to render them pliable before they are worked up in the knitting or other machine. In the case of fragile goods such as silk filaments, real or artificial, this dampening must be carefully executed since it is liable to break up the fibres and destroy the filament. The best effect is produced if the dampening is carried out at a low temperature and only allowed to penetrate the outer surface of fibres, the core being left dry to maintain the strength of the filament.

The object of the present invention is to provide means for an effective and uniform dampening of the silk and like filaments, real or artificial, and the invention consists in enclosing the cops or bobbins in recepta-' cles through which damp, cold air is circulated. This is preferably effected on the machine itself so that the filaments can pass directly from the dampening receptacle to the thread guides.

Fig. 1 of the accompanying drawings represents a diagrammatic view of one form of the device.

Fig. 2 is a side view of a modification, in section on the line 22 of Fig. 3, and

Fig. 3 is a plan view of this modification.

The cops or bobbins are enclosed in receptacles 2 which are preferably made of glass so that the cops remain in view. The filaments 1 are led through apertures 3 to the knitting or other machine on which they are worked up. The receptacles communicate at top and bottom with pipes 8 and 6 respectively which are both connected to a fan l so that the latter can be used for circulating air to the receptacles. forced by the fan through a spraying device 5 which receives water from a pipe 10. This water is converted by the elements at and 5 into a fine spray which mixes with the air and passes through the receptacles for dampening the filaments 1. Suitable means such as ice or chemicals are employed for cooling the water so as to acquire the necessary low temperature. The air itself may also for this purpose be passed through suitable refrigerators. The pipe 6 has a discharge 9 through which it can be cleared of accumulated water. The receptacles 2 may be large enough to accommodate refills so that the latter will be subjected to the dampening treatment before they are actu The air is.

ally required. Further refills may be accommodated in a separate cabinet 11 in which the cops 13 are arranged on shelves 12 under which baflles 16 are provided for leading cold water in a zig-zag path through the receptacle. This Water is fed from a pipe 14- to a spraying device 15. The spray is directed towards the cabin t wall and flows thence from one battle to another in a thin film. The water is discharged through a pipe 17 and may be raised by means of a pump for fresh use. Preferably six trays are provided each one of which is adapted to hold enough cops for one days work. Thus the cops can be retained in the receptacle a whole week so as to be thoroughly prepared, the trays being emptied in succession and replenished with dry cops. Suitable valve 23 are provided for regulating the water supply to the spraying device. The fan may be replaced by any other suitable contrivance whereby air under pressure can be forced into the spraying device 5.

In the modified form of construction shown in Figs. 2 and 3 the receptacles are formed with double-walls 2 and 21 so as to prevent heat interchange with the atmosphere. Slidable, double-walled doors 19 are provided to give access to the interior. The cold damp is in this case produced by spraying cold water .on the inner walls of the receptacle, perforated spraying pipes 18 being for this purpose led through the receptacles in succession. Only three walls of each receptacle are exposed to the spray, and the water is led down along the walls and thence along the bottom 24: to a discharge pipe 9 which leads it to a reservoir whence the water is re-pumped into the spraying pipe. A valve 23 is provided for regulating the water circulation. Shields 20 and 22 are arranged so as to prevent the water from splashing onto the cops from the pipe 18 and from the bottom of the receptacle. Cold dampness is driven off from the wet receptacle walls, and the filaments imbibe the dampness so as to arrive at the working place in a pliable condition. The dampenin can be regulated by means of the valve according to the nature of the material. Thermometers may be employed to show the temperature in the different receptacles. Also in this case the water may be cooled by suitable means.

The actual construction of the receptacles and the manner in which theyare mounted on the machine will depend on the nature of the latter. Either one large or several small receptacles may be used I claim:

1. A device for treating silk and like filaments for use on textile machines, comprising a storage cabinet, a tier of trays in said cabinet adapted to receive the cops, means for supplying a water spray to said cabinet, and ballles arranged in said cabinet so as to lead the water between the trays.

,2. A device for treating silk and like lilan' ents for use on textile machines, comprising a storage cabinet, at tier of trays in said cabinet adapted to receive the cops, means for supplying a Water spray to said cabinet, and battles arranged under the trays so as to lead the water in a zig-Zag path between "the trays through the caliiinet.

3 The device claimed in claim 1 in combination with closed receptacles adapted to hold the cops on the machine and formed with narrow apertures through which the filaments are led from the cops to the mawith narrow apertures through which the filaments are led from the cops to the maclune, a fan casing, pipes through which said casing communicates in diametrically opposite positions with the different receptacles, a fan in said casing for circulating air through the pipes and through the re ceptacles, and means for supplying a Water spray to the pipes so as to load the air with moisture.

HERMANN J OHANNES SCHVVABE. v 

